Home Master® Minifeatures all the performance and long life of a full-sized countertop filter, at the price of faucet filter. It delivers a full year's worth of filtered water for all your drinking, cooking, pet watering and veggie washing needs. Go ahead and use it. The filter may be Mini, but it's a Big Purifier™ with a stout 1 micron carbon block that removes up to 99%: dirt and rust; chemicals like chlorine, herbicides, pesticides, VOCs, and THMs, that create foul tastes and odors in your tap water. Dissolved solids like calcium and magnesium minerals (TDS) are not removed. For municipal water systems using chlormaines, use Mini model 1CCB. For lead removal use Mini model PLUS.